SOS

play
noun \ˌes-(ˌ)ō-ˈes\

Definition of SOS

  1. 1 :  an internationally recognized signal of distress in radio code ‧ ‧ ‧ - - - ‧ ‧ ‧ used especially by ships calling for help

  2. 2 :  a call or request for help or rescue

1910

First Known Use of sos

1910


SOS Defined for English Language Learners

SOS

play
noun \ˌes-(ˌ)ō-ˈes\

Definition of SOS for English Language Learners

  • : a signal used by ships and airplanes to call for help


Medical Dictionary

SOS

abbreviation

Medical Definition of SOS

  1. if occasion require; if necessary—used in writing prescriptions

Origin and Etymology of sos

Latin si opus sit


Learn More about sos


Seen and Heard

What made you want to look up SOS? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

skillful, artistic, or intricate

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

  • hot-dog--hot-dog--hot-dog--hot-dog-cat
  • Which of the following words is not a synonym for ‘a young person’?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ